Refacing tool



PatentedA July 3, 1923.

y .nnracrivc Toor..

-fapplicati'on filed october 7, 1920. *sealara 415,371; Y

To all whom timely/.concern zen of the United States, residing @ati Blerea in the .county of Cuyahoga and State; lof

. Ohio,v have invented certain-new and useful Improvtments in Refacing Tools, of which the followingis ajspecication.

My invention relates to improvements in refacing tools, and more particularly to that classior `type adapted toreclaim worn or imperfect surfacesor bearingsby a cutting or abrasivel action.thereby'restoring to the original contour or fit. f Y

The present yembodiment of the invention isparticularlyl designed and adapted :for

, vuse inthe reclaiming or reseating of the internal combustionvengines.

- The prima-ry; objectlis the provisionA ofa generally improved tool Iof this class which will be exceedingly simple-in,l construction,

valve seats of ordinary ypoppet valves ofA cheapof manufacture, and'eflicient in use.

v A further Objectis theprovision yof an improved tool of this class in which im` proved guide and driving spindles are, provided.. in connection with an vimproved Acutter carrier'provided with multiple faced reversible ',cutters, said guide and driving 'spindles being so' arranged `and disposed relative to each other and tothe cutter carrier with its cutters that the bearing surface orface of thevalve seat will be cut or reclaimedfat aproperly angled and centralized position relative tothe common aXial plane of the cavity or ,-v'alve seat.I L

A still/further objectvisthe provision.- of an yimproved rotary 'cutter carrier together with'an improved formi offmultiple faced reversible cutters andl meansI for supporting said* cutters pwith theactiveW-cutting faces thereof inclined at acuteangles 'to the radial planes Aextending thru the 'axis of ro.' tation ofthe rotatablelcutterwhereby such cutting faces forintheir own clearance at the rear ofthe cutting edges and the surface vbeing'reclaimed so that-all edges of Atheffaces ofthe reversibleI cutters may be utilized..

` `lVith, the above mentioned and other ends in view, the invention consists inthe novel construction, arrangernent,i and combination of parts, hereinafter,y described, illustrated ini some of its embodiments. in .the acco1`npanying drawings,' ands'particularly pointed out in the appended claims.

Referring'to the drawings, forming a part.

Be it known that I, Rosoon' 'Fugainaeiti-l` of vthis rfspecifioation,A Figure-1l is ajsi-delelef: f

vationof a tool ,constructedf'inl accordance with thisin-vention. f

Fig. 2, atop. plan orendsaine. f

'."Fig. 6, a perspective view of one of the multiple .Y faced reversible.zicutters',y detached.A` lig. 7 ,aside elevation illustrating'the plication of the limproved tool a refacing seat of an engine. 1 v Fig. 8, a sideelevationof a'modified'form of cuttery carrierfand: a modified meansfyof 'i mounting the reversible 1 cutters thereon.' f lFig. ,9, aview? ofthe-under orface side of the cutter carrier', theQdrivingg;.andfguidl ing spindles being removed.

so q

Similar numerals-fof referencel designate like parts thruoutl all the *figures* of the drawings. f

The improved cutter carrier 1, :upon which the4 improved cuttersnhereinafter describedare mounted;

saidcutter carrier beingV adapted t:of.be"1ro-y v tated lor driven by. means of a driving spin# refacing.l tool f comprisesa l dle or shank2,` and being .preferably'proi videdv with a guideor pilot 'spindle 3.

.The driving spindle vor shank 2," ma v,be``

operated in lany suitable and 'convenient "i manner7 as for 'example ,-by 1 means of aire movable cross arm orf'r'od'h mounted .in1 a suitable'opening in the'top of the spindle-2.`

as shown in Fig. lof-thedrawings,l vor'yby.

means .of a suitable wrench such asa brace wrench 5', asshown'in Fig. 7 ofthe draw# ings. i L

As a means'of` removably mounting and securing the cutter carrier 1. E'upon' thedriving spindle'or shank 2, the Qlatteris preferf ably provided'with .a rounded reducedpor# f.

tion 2a; terminating lin any angular or square shaped'portion 25,1adapted'to` besftted lor. 3 seated in a similarly shapedy opening intthe head or carrier l, shown/most clearly Fig. l-ofL the drawingsY The angularpo-r'f or reclaiming tool in connection with a valve 75 l lof' i l tion 2b, will prevent the carrier l, from moving circumferentially on the driving spindle 2, when the latter vis operated, and as a means of securing the carrier in seated position the angular portion 2b, terminates/1n a'threaded extension provided with a secury ing nut 6. u p z As a means of securing the pilot spindle or I 1 guide shank 3, the driving spindle 2, isprovided with an opening 2C, within which the spindle 8, is removably mounted, and if desired the topE of the spindle 3, maybe pro `vided with an annular vgrooveda, Within which may be seated a'securingscrew V7.

The improved cutters 8, are adaptedV to be reversibly and interchangeably mounted upon the' cutter carrier l, ashereinafter more fully described, said cutters. being prof engine, as illustrated inFig. 7' ofi-the draw` videdwith a plurality of faces 8, said faces 8a, when the cutters are mounted asy hereinafter described, forming' cutting edges 8b.

f As a means vofl adapting the improved tool for use as a reseatingy tool to reclaim or reform the annular seat 9, 'of the valve portion of an ordinary internal' combustion ings, the cutter carrier l, is' preferably in the form of an. inverted truncatedlcone confor'ming substantially to the form of the ordinaryv val-vey head used in thisv classv of valves,` and as a meansof securely mounting and holdingfthe cutters V8, innproper position so that all the cutting edges 8b, (in the present' instance eight in number), may be utilized, the Acutter carrier is provided about its outer periphery with a plurality of cute p ter receiving recesses l, said recesses being eitherV in the specific form shown in Figs. l to 5, inclusive, of the drawings, to receive and carry the cutters in a relatively flat pop sition vvvithrespect to the fa'ce of the cuttercarrier, or in the specific form of vertically extending'notched recesses l", to receive and carry the cutters 8 in a relatively vertical position, as shown in Figs. k8' and 9 fof the drawings.

As a means of removably securing the cutl kters within the notched recesses ylZL and 1b,

respectively, the cutters 8 may be provided with central openings Se, adapted to receive and contain attaching elements 10, in the specific form of` screws, as shown, said attaching kelements being screwed into suitableA threaded openings in the. cutter carrier rl. f

It will be seen that the supporting farces ofthe cutter receivingrecesses la and 1b, are arranged inA suchrvrelation to the surface lto be .recut vor' reclaimed, such for eX- ample. as the seat 9?, and tothe longitudinal axial centerofthe pilot'spindle and the valve `stemnopening 9, that the active cutting faces 8a, will be inclined at acute angles to the' radial planes extending thru the axis ofthe rotary cutter carrier orV tool and. the

the direction of'rotationof'fthe cutter cari common axis of the cavity or seat to be reclaimed, whereby such cutting faces form their own clearance at the rear Of'tliecutting edges 8b andrelative to the direction ofw rier)- and that"` such faces are inclined at acute angles-to theradial planes'indieated by vsuch lines.

' In the form of the mounting .of the cutters yshown `in Figs. l to 5', inclusive,l of `the 'drawings1 such cuttersv aread'apted to" act equally well 'inv either direction of`rotati `m of the cutter carrier thru the driving -spin'- dle 2, vWhile-1in thef'orm. `shown in Figs. 8 and 9, a rotation in one direction'is effected.

If desired, however, 'one side or-thefotlier' l of the active cuttingfacesmay be elevated f slightly above `the opposite,sothatl oneY cut ting edgey only is yused thru the medium' of a wedge-shaped piece or filler plate," 11, in` serted between theA base` of thecutter and the seat portion-cf the Vgroove orcutter're'ceivf` ing recess 1-,asshown most clearly in Fig, 5 of the drawings.

From' the foregoing description, taken' y in" connection-with the yaccompanying drawf ings, the operation and' advantages. of ymy invention will be readily understood.'

Having thus vdescribed-some "of 'the'ieme bodiments of myv invention, vwithoutl having attempted to set forth-alhthefforms in which itmay be made, or all the `modes of its use, what I claim and desire to secure by Letters Patentis,-

l. In a bearing surface,v reclaimingftool, a lrotatable cutter carrier provided `with a removable pilot or guidespindle,- anda'plu l,

rality of interchangeable multiple" faced' re-k versible cutters mounted thereon whereby the active cutting faces conjointlfy form cutting edges fork rotation' of the cutter ycar rier in either direction and clearancefat the rear of. the cuttingedge being used'. y f

`2'. In fa bearing reclaiming tool,.- afrotat able cutter carrier, a multiple faced reversible cutter carried thereby kwith `its' active cutting faces inclined atacute angles to the radial planesojf the axisfof' rotation" i whereby clearance :is formed' at-the rear of the cutting edges and.' between the: cutting face and surface beingl=reclaimed `so that all cuttingedgesof'the facesgiofthe revers.-

ible' cutter m-fayberutiiliz'ed'. i

3. In a bearinggsi'irface"reclaiming tool,

a rotatable cutter vcarrier provided Wi-'tir"re-pk lo ial driving faced cutters mounted thereon With the `acmovable driving and pilot spindles, and multiple faced cutters, and means for securing the latter thereon in predetermined positions whereby the active cutting faces 5 conjointly forming cutting edges may be tive cutting faces eonjointlyl forming out? ting edges, and means for adjusting and bringing such cutting edges'into operation atone side or the other for rotation of the andaii'ording clearance at the rear' of the cutting edge being used. l

In Vtestimony lwhereof Ivhave aiiixed'my signature.

n a :eosoonl BEAN;

15.* cutter carrier ina corresponding direction 1 l 

